{"id":"GHSA-p3hw-mv63-rf9w","revision":null,"records":[{"revision":"ee13691a187448b080792628bafcde4f","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-82253","aliases":[],"title":"gitoxide before 0.82.0 Path Traversal via Submodule Name Validation Bypass","description":"gitoxide (Rust crates gix <= 0.72.0 and gix-validate <= 0.10.0) contains a path traversal vulnerability. The submodule name validation function in gix-validate only checks the first occurrence of '..' via name.find(b\"..\"), allowing crafted names such as 'a..b/../../../.git/' to bypass the check; additionally this validation is never invoked in production code paths. Combined with a trust inheritance flaw in Submodule::open(), where the parent repository's git_dir_trust (Trust::Full) is cloned and the ownership verification is skipped, an attacker can craft a malicious .gitmodules file so that a victim tool built on gitoxide reads arbitrary git repository configuration (including embedded credentials) with full trust, bypassing safe-directory protections. Fixed in gix 0.82.0 and gix-validate 0.11.1.","state":0,"publishedAt":"2026-08-28T10:49:37.566+00:00","modifiedAt":"2026-08-31T18:34:55.673+00:00","affected":[{"ecosystem":"Vendor product","name":"gitoxide","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"GitoxideLabs\",\n                    \"product\": \"gitoxide\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"packageURL\": \"pkg:cargo/gix\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\",\n                            \"lessThan\": \"0.82.0\"\n                        },\n                        {\n                            \"version\": \"0.82.0\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"gitoxide","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"GitoxideLabs\",\n                    \"product\": \"gitoxide\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"packageURL\": \"pkg:cargo/gix-validate\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\",\n                            \"lessThan\": \"0.11.1\"\n                        },\n                        {\n                            \"version\": \"0.11.1\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","score":8.7,"severity":"HIGH"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","score":7.5,"severity":"HIGH"}],"references":["https://github.com/GitoxideLabs/gitoxide/security/advisories/GHSA-p3hw-mv63-rf9w","https://www.vulncheck.com/advisories/gitoxide-before-0.82.0-path-traversal-via-submodule-name-validation-bypass"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-82253","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-82253","identifiers":["CVE-2026-82253"]},"retained":false,"historicalAffected":[]},{"revision":"54d2eab0a0bb4de49343f357d9e460cf","observedAt":"2026-11-13T17:09:20.132+00:00","statement":{"source":"euvd","id":"EUVD-2026-67705","aliases":["CVE-2026-82253","GHSA-6f8q-f8px-cxhw"],"title":"gitoxide (Rust crates gix <= 0.72.0 and gix-validate <= 0.10.0) contains a path traversal vulnerability. The submodule name validation function in gix-validate only checks the first occurrence of '..' via name.find(b\"..\"), allowing crafted …","description":"gitoxide (Rust crates gix <= 0.72.0 and gix-validate <= 0.10.0) contains a path traversal vulnerability. The submodule name validation function in gix-validate only checks the first occurrence of '..' via name.find(b\"..\"), allowing crafted names such as 'a..b/../../../.git/' to bypass the check; additionally this validation is never invoked in production code paths. Combined with a trust inheritance flaw in Submodule::open(), where the parent repository's git_dir_trust (Trust::Full) is cloned and the ownership verification is skipped, an attacker can craft a malicious .gitmodules file so that a victim tool built on gitoxide reads arbitrary git repository configuration (including embedded credentials) with full trust, bypassing safe-directory protections. Fixed in gix 0.82.0 and gix-validate 0.11.1.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","score":8.7,"severity":null}],"references":["https://github.com/GitoxideLabs/gitoxide/security/advisories/GHSA-p3hw-mv63-rf9w","https://www.vulncheck.com/advisories/gitoxide-before-0.82.0-path-traversal-via-submodule-name-validation-bypass"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-67705","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Aug 28, 2026, 10:49:37 AM","dateUpdated":"Aug 31, 2026, 6:34:55 PM"},"relatedAdvisories":[{"id":"openSUSE-SU-2026:11741-1","title":"cargo-c-0.10.25-1.1 on GA media","vulnerabilityIds":["CVE-2026-82247","CVE-2026-82250","CVE-2026-82251","CVE-2026-82253","CVE-2026-82254"]},{"id":"msrc_CVE-2026-82253","title":"gitoxide before 0.82.0 Path Traversal via Submodule Name Validation Bypass","vulnerabilityIds":["CVE-2026-82253"]},{"id":"openSUSE-SU-2026:11730-1","title":"cargo-audit-0.22.2~git0.281452c-3.1 on GA media","vulnerabilityIds":["CVE-2026-82247","CVE-2026-82250","CVE-2026-82251","CVE-2026-82253","CVE-2026-82254"]}],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-67705","identifiers":["EUVD-2026-67705","CVE-2026-82253","GHSA-6f8q-f8px-cxhw"]},"retained":false,"historicalAffected":[]},{"revision":"d81832cfc3c444f1807865a672f9e1f7","observedAt":"2026-10-25T16:19:10.271+00:00","statement":{"source":"nvd","id":"CVE-2026-82253","aliases":[],"title":"gitoxide (Rust crates gix <= 0.72.0 and gix-validate <= 0.10.0) contains a path traversal vulnerability. The submodule name validation function in gix-validate only checks the first occurrence of '..' via name.find(b\"..\"), allowing crafted …","description":"gitoxide (Rust crates gix <= 0.72.0 and gix-validate <= 0.10.0) contains a path traversal vulnerability. The submodule name validation function in gix-validate only checks the first occurrence of '..' via name.find(b\"..\"), allowing crafted names such as 'a..b/../../../.git/' to bypass the check; additionally this validation is never invoked in production code paths. Combined with a trust inheritance flaw in Submodule::open(), where the parent repository's git_dir_trust (Trust::Full) is cloned and the ownership verification is skipped, an attacker can craft a malicious .gitmodules file so that a victim tool built on gitoxide reads arbitrary git repository configuration (including embedded credentials) with full trust, bypassing safe-directory protections. Fixed in gix 0.82.0 and gix-validate 0.11.1.","state":0,"publishedAt":"2026-08-28T12:16:38.027+00:00","modifiedAt":"2026-08-31T19:17:16.43+00:00","affected":[],"metrics":[{"system":"CVSS 4.0 · disclosure@vulncheck.com · Secondary","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","score":8.7,"severity":"HIGH"},{"system":"CVSS 3.1 · disclosure@vulncheck.com · Secondary","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","score":7.5,"severity":"HIGH"}],"references":["https://github.com/GitoxideLabs/gitoxide/security/advisories/GHSA-p3hw-mv63-rf9w","https://www.vulncheck.com/advisories/gitoxide-before-0.82.0-path-traversal-via-submodule-name-validation-bypass"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-82253","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Deferred","weaknesses":["CWE-22"],"productCriteria":[],"sourceDates":{"published":"2026-08-28T12:16:38.027","lastModified":"2026-08-31T19:17:16.430"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-82253","identifiers":["CVE-2026-82253"]},"retained":false,"historicalAffected":[]},{"revision":"9e0192e078cd4744959c7c18b17d4f4f","observedAt":"2026-10-24T13:19:54.901+00:00","statement":{"source":"osv","id":"GHSA-p3hw-mv63-rf9w","aliases":["CVE-2026-82253"],"title":"gix's submodule name validation bypass + trust inheritance flaw enables path traversal and credential disclosure","description":"### Summary\n\nSubmodule name validation bypass plus missing validation in production code paths allows path traversal via crafted `.gitmodules`. Combined with a trust inheritance flaw in `Submodule::open()`, this enables reading arbitrary git repository configs (including credentials) from traversed paths with full trust (CWE-22, CWE-200).\n\n### Details\n\n**Bug 1: Validation bypass in `gix-validate/src/submodule.rs` (lines 27-42)**\n\nThe `name()` function uses `name.find(b\"..\")` which returns only the FIRST occurrence. If the first `..` is embedded in a non-traversal context, the function returns `Ok` without checking subsequent `../` sequences:\n\n```rust\npub fn name(name: &BStr) -> Result<&BStr, name::Error> {\n    match name.find(b\"..\") {\n        Some(pos) => {\n            let &b = name.get(pos + 2).ok_or(name::Error::ParentComponent)?;\n            if b == b'/' || b == b'\\\\' {\n                Err(name::Error::ParentComponent)\n            } else {\n                Ok(name)  // Returns Ok without checking rest of string\n            }\n        }\n        None => Ok(name),\n    }\n}\n```\n\nBypass: `a..b/../../../.git/` passes because `find(b\"..\")` returns position 1 (the `..` in `a..b`), checks `name[3] == b'b'`, and returns Ok. The real `/../../../` is never checked.\n\n**Bug 2: Validation never called in production**\n\n`gix_validate::submodule::name()` has zero production callers (only test code). The `names()` iterator in `gix-submodule/src/access.rs:29` explicitly documents it returns \"unvalidated names.\"\n\n`git_dir()` at `gix/src/submodule/mod.rs:198-204` constructs filesystem paths from raw names:\n\n```rust\npub fn git_dir(&self) -> PathBuf {\n    self.state.repo.common_dir().join(\"modules\").join(gix_path::from_bstr(self.name()))\n}\n```\n\n**Bug 3: Trust inheritance bypass in `Submodule::open()`**\n\nAt `gix/src/submodule/mod.rs:270`, `open()` clones the parent repository's options:\n\n```rust\nmatch crate::open_opts(self.git_dir_try_old_form()?, self.state.repo.options.clone()) {\n```\n\nThe parent's `options.git_dir_trust` is `Some(Trust::Full)`. At `gix/src/open/repository.rs:103-104`:\n\n```rust\nif options.git_dir_trust.is_none() {\n    options.git_dir_trust = gix_sec::Trust::from_path_ownership(&git_dir)?.into();\n}\n```\n\nSince trust is already `Some(Full)`, the ownership check is **skipped entirely**. The traversed path is opened with `Trust::Full` regardless of ownership, bypassing gitoxide's safe-directory protections.\n\n### PoC\n\nCompiled and executed in Rust 1.94.1 `--release` mode. All bypass cases confirmed:\n\n```\nBYPASS a..b/../../../.git/           -> PASSED validation\n       git_dir = .git/modules/a..b/../../../.git/\n       normalized = .git/              (parent repo!)\n\nBYPASS x..y/../../../.git/config     -> PASSED validation\n       git_dir = .git/modules/x..y/../../../.git/config\n       normalized = .git/config\n```\n\n### Attack chain\n\n1. Attacker crafts a repository with `.gitmodules`:\n   ```ini\n   [submodule \"x..y/../../..\"]\n       path = innocent\n       url = https://attacker.com/repo.git\n   ```\n\n2. Victim clones the repository using a tool built on gitoxide.\n\n3. When the tool iterates submodules and calls `submodule.open()` or `submodule.status()`:\n   - `git_dir()` returns `.git/modules/x..y/../../..` which resolves to the parent `.git/`\n   - `open_opts()` is called with `Trust::Full` (inherited from parent, ownership check skipped)\n   - The parent's `.git/config` is fully parsed\n\n4. The returned `Repository` object exposes all config values from the traversed path:\n   - `remote.origin.url` (may contain `https://user:token@github.com/...`)\n   - `http.extraHeader` (often `Authorization: Bearer <token>`)\n   - `credential.*` sections\n   - `core.sshCommand`\n\n5. Accessible via standard API: `repo.config_snapshot().string(\"http.extraHeader\")`, `repo.find_remote(\"origin\")`, etc.\n\n### Impact\n\nA crafted `.gitmodules` in a malicious repository causes gitoxide to open arbitrary git directories as submodule repositories with full trust, exposing their configuration including credentials. This is the same class of vulnerability as GHSA-7w47-3wg8-547c (path traversal), but through the submodule name vector with an additional trust bypass.\n\nThe trust inheritance is the critical amplifier: without it, the traversed path would undergo ownership checks that could block the attack. With it, any git directory reachable via `../` is opened with full trust.\n\n### Honest limitations\n\n- The traversed path must be a valid git directory (HEAD, objects/, refs/ must exist)\n- The victim's tool must call `open()` or `status()` on submodules (tools that only list submodules are not affected)\n- Credential exposure requires the target config to contain embedded credentials\n- Submodule operations currently require explicit user action\n\n### Suggested fix\n\n1. Fix the validation to check ALL `..` occurrences (iterate, not single `find`)\n2. Call `gix_validate::submodule::name()` in `git_dir()` before constructing the path\n3. Do NOT inherit `git_dir_trust` from parent when opening submodule repos -- always re-derive trust from path ownership\n\n### Severity\n\nHigh. Network vector (via clone), requires user interaction (submodule operations). The trust bypass enables credential disclosure from traversed git directories. Confidentiality impact is high.","state":0,"publishedAt":"2026-05-05T19:20:38+00:00","modifiedAt":"2026-09-10T03:50:47.1631312+00:00","affected":[{"ecosystem":"crates.io","name":"gix","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"0.83.0"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"crates.io","name":"gix-validate","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"0.11.1"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V4","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"HIGH"}],"references":["https://github.com/GitoxideLabs/gitoxide/security/advisories/GHSA-p3hw-mv63-rf9w","https://github.com/GitoxideLabs/gitoxide"],"sourceUrl":"https://github.com/advisories/GHSA-p3hw-mv63-rf9w","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-p3hw-mv63-rf9w","identifiers":["GHSA-p3hw-mv63-rf9w","CVE-2026-82253"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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